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Message: [QUOTE="Hotrodtractor, post: 379038, member: 25"] I'm not sure that I fully agree with how you rate the current power capabilities of the rods. All too often these motors pop apart at lower power numbers - this is due mostly to the setup and tuning of the truck. The HUEI injection system is about as slow as you can get as far as fuel delivery is concerned - if you want to make power you need the time to get the fuel injected - this means injecting fuel at lower RPMs - which is higher torque and higher cylinder pressures for longer periods of time. In HEUI form - I don't doubt that the billet rods on the market from say Crower could handle a 1000hp even though there are few examples of that capability. In a mechanical injected scenario - I bet you could easily hit 2K with that same rod. A common rail setup with "off the shelf" components is going to be closer to the mechanically injected scenario if not exceed it due to its gains in combustion efficiency and control. If Manley wants to produce a lower cost rod for us - great - a 1K HP HEUI rod should be able to handle 1650-1875 ft-lbs of torque from 2800-3200 RPMs - the only way to get a lighter strength rod to hold that kind of force is to improve our injection system - either with faster HEUI injectors (can be done, but not cheap) - or a completely different injection system all together. A 1K hp capable HEUI rod is one beefy rod - a 1K hp mechanical injection rod isn't hateful - but also is making that 1K hp closer to say 4500 RPMs and is a lot more peaky than the HEUI setup - a 1K HP CR rod can be as beefy as the HEUI rod if someone sets it up to make those torque numbers down low - or could be as light as the mechanical rod - it all depends on setup and tuning because these injection systems have so much more control AND injection speed capabilities. In order to define the amount of power a rod is capable of - you have to define what cylinder pressures you want it to be able to withstand and determine the RPM range that you want it to operate at. With HEUI - you will always be high cylinder pressures at a relatively lower RPM range unless you do some exotic things. It requires a "beefier" rod than what would normally be accepted for a particular power level. Go through all the dyno sheets that you can find - I bet you don't find a single sheet that peaks its power less than 3400 RPMs unless the tuner was holding back the peak power capability down low on purpose to keep it alive - a practice that should be done more often than it is. [/QUOTE]